Messages in this thread Patch in this message | | | From | Kangjie Lu <> | Subject | [PATCH] usb: u132-hcd: fix potential NULL pointer dereference | Date | Thu, 14 Mar 2019 02:27:11 -0500 |
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In case create_singlethread_workqueue fails, the fix notifies callers the error to avoid potential NULL pointer dereferences.
Signed-off-by: Kangjie Lu <kjlu@umn.edu> --- drivers/usb/host/u132-hcd.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 934584f0a20a..6d5b532b03f8 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -3203,6 +3203,8 @@ static int __init u132_hcd_init(void) return -ENODEV; printk(KERN_INFO "driver %s\n", hcd_name); workqueue = create_singlethread_workqueue("u132"); + if (unlikely(!workqueue)) + return -ENOMEM; retval = platform_driver_register(&u132_platform_driver); return retval; } -- 2.17.1
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